EP 1306596 A3 20041027 - Dual pilot manifold assembly for a safety relief valve
Title (en)
Dual pilot manifold assembly for a safety relief valve
Title (de)
Doppelservoverteiler für ein Sicherheitsventil
Title (fr)
Ensemble collecteur double de commande de soupape de sûreté
Publication
Application
Priority
- EP 96928880 A 19960815
- US 52305195 A 19950901
Abstract (en)
[origin: US5769113A] A manifold assembly 10 for operating a safety relief valve 12 includes a manifold block 60 having a block inlet port 230, a block dome pressure port 232, and a pair of control cavities 220 and 222 each adapted for receiving a pilot valve 70 or auxiliary control member 80. Inlet control valves 74, 84, dome pressure control valves 76, 86, and test control valves 78, 88 are each mounted on the manifold block. One of the pilot valves may be maintained on-line for controlling operation of the safety relief valve, while the other pilot valve may be isolated for service. A cartridge pilot valve assembly 70 includes a bushing 126 for facilitating installation and removal of the cartridge valve assembly from the valve block. An improved metal washer 122 is provided having inner and outer knife edges 330, 334 for sealing engagement between the valve body 110 and the block 60.
IPC 1-7
IPC 8 full level
F15B 13/00 (2006.01); F15B 13/08 (2006.01); F15B 20/00 (2006.01); F16K 17/10 (2006.01); G01L 19/00 (2006.01)
CPC (source: EP US)
F15B 13/0814 (2013.01 - EP US); F15B 13/0835 (2013.01 - EP US); F15B 13/086 (2013.01 - EP US); F15B 13/0871 (2013.01 - EP US); F15B 13/0896 (2013.01 - EP US); F15B 20/00 (2013.01 - EP US); F16K 17/105 (2013.01 - EP US); G01L 19/0015 (2013.01 - EP US); F15B 2013/004 (2013.01 - EP US); Y10T 137/7668 (2015.04 - EP US); Y10T 137/7762 (2015.04 - EP US); Y10T 137/7764 (2015.04 - EP US); Y10T 137/7769 (2015.04 - EP US); Y10T 137/87113 (2015.04 - EP US)
Citation (search report)
- [X] DE 1966461 A1 19730412 - ANDERSON GREENWOOD & CO
- [X] US 4005728 A 19770201 - THORP RALPH E
- [X] US 4731914 A 19880322 - ZEUNER KENNETH W [US], et al
- [A] US 4984549 A 19910115 - MESENICH GERHARD [DE]
- [A] US 4109942 A 19780829 - MORRILL CHARLES DONOVAN
- [A] GB 2220996 A 19900124 - FESTO KG [DE]
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
US 5769113 A 19980623; AU 6847396 A 19970327; DE 69627666 D1 20030528; DE 69627666 T2 20040205; DE 69637897 D1 20090520; EP 0842376 A1 19980520; EP 0842376 A4 19990107; EP 0842376 B1 20030423; EP 1306596 A2 20030502; EP 1306596 A3 20041027; EP 1306596 B1 20090408; IN 190201 B 20030628; NO 315339 B1 20030818; NO 980787 D0 19980225; NO 980787 L 19980428; US 5590684 A 19970107; WO 9709553 A1 19970313
DOCDB simple family (application)
US 74372496 A 19961106; AU 6847396 A 19960815; DE 69627666 T 19960815; DE 69637897 T 19960815; EP 03001630 A 19960815; EP 96928880 A 19960815; IN 1444CA1996 A 19960812; NO 980787 A 19980225; US 52305195 A 19950901; US 9613253 W 19960815